Activist investor & 5%+ owner · SC 13D/13G filings
Total Filings
17
Stocks Covered
11
Latest Filing
Nov 14, 2025
IO Biotech, Inc.
SC 13G/A · Nov 14, 2025
0.0%
0 shares
Instil Bio, Inc.
SC 13G/A · Aug 13, 2025
4.5%
293K shares
Sera Prognostics, Inc.
SC 13G/A · May 15, 2025
1.7M shares
SC 13G/A · Nov 14, 2024
9.0%
585K shares
Tarsus Pharmaceuticals, Inc.
SC 13G/A · Feb 13, 2024
2.7%
895K shares
IVERIC bio, Inc.
SC 13G/A · Feb 13, 2023
8.5%
2.3M shares
Genetron Holdings Limited
6.3%
28.6M shares
Mereo BioPharma Group plc
0.7%
839K shares
KalVista Pharmaceuticals, Inc.
0.2%
83 shares
Sierra Oncology, Inc.
SC 13G/A · Jul 5, 2022
Larimar Therapeutics, Inc.
SC 13G/A · Feb 11, 2022
0.4%
73K shares
1.8%
2.1M shares
0.9%
1.1M shares
ESSA Pharma Inc.
0.3%
119K shares
2.3%
432K shares
14.4%
3.0M shares
